== sanity test 184c: Concurrent write and layout swap ==== 20:33:10 (1786840390) 56+0 records in 56+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 3.52315 s, 16.7 MB/s 60+0 records in 60+0 records out 62914560 bytes (63 MB, 60 MiB) copied, 3.4871 s, 18.0 MB/s ref file size: ref1(58720256), ref2(62914560) 3584+0 records in 3584+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 5.62109 s, 10.4 MB/s Copied 1343488 bytes before swapping layout...